031.371.01 Introduktions GB_2013feb.indd - Fibertex AS

C O N S T R U C T I O N100.05Civil engineeringFibertex Geotextiles

C O N S T RConstructing withFibertex GeotextilesFibertex offers a full range of nonwoven geotextilesdesigned for use in many different foundationstructures within civil engineering works. Themost common applications are:• Road works• Construction works• Ground systems• Drainage and filtration systems• Hydraulic works• Waste disposals (landfills)Fibertex technologyFibertex manufactures nonwoven geotextilesusing the drylaid needlepunch technology. Virginpolypropylene fibres are extruded, carded andfinally needlepunched. Furthermore, manyproduct types have thermal treatment added(e.g. IR bonding, hot air bonding or calendaring).Superior 3-dimensional geotextileFibertex Geotextiles are unique due to acombination of intensive needling and variousbonding processes. After being laid out horizontallythe intensive needling ensures that the fibres arefixed vertically. The result is a strong and flexible3-dimensional product which is advantageous inall parameters related to geotextiles.High performance FibertexGeotextilesThe drylaid needlepunch technology ensures highquality geotextiles with:• High strength and high elongation= high energy absoption• Excellent resistance to installation damage= high puncture resistance• Long-term wearing properties= more than 25 years of service life• Unique hydraulic properties= controlled high water flow• Excellent abrasion properties= no surface abrasion• High uniformity= ensured by production technique and qualitycontrol• No delamination= fibres interlocked in all 3 dimensionsAll Fibertex Geotextiles are UV-stabilised, resistantto acids and alkalis, and cannot be attacked byfungi or rot. No chemical binders are used inthe product or in the production process, andpolypropylene is a polymer material which turnsinto carbon dioxide and water vapour whenincinerated - both completely harmless substances.Advantages of using FibertexgeotextilesMore than 100 punches per cm 2Machine directionWhen using geotextiles between differentconstruction layers, mixing of the layers is avoided,resulting in an increase of bearing capacity andthereby also time and material savings. Highwater flow and good filter properties combinedwith the necessary mechanical properties of thegeotextile ensure that fine-grained particles areretained, while free movement of water is maintained.Consequently, stability is improved and life of theentire construction is prolonged.2

U C T I O NDesigning withFibertex GeotextilesSource: Palm Island, Dubai. Installation of Fibertex F-650M. The Fibertex Geotextile will be covered completely with gravel and sand.The importance of qualityFibertex’s quality management system is certifiedin accordance with the most comprehensivestandards set by the International Organisationfor Standardisation EN ISO 9001:2008. This meansthat the quality management system has beenimplemented and verified at all levels within theorganisation.Fibertex Geotextiles are CE marked under theEU Construction Products Directive. CE markingcertifies that Fibertex’s quality managementsystem (EN ISO 9001:2008) complies with the ENstandards (level 2+). Fibertex Geotextiles aresubmitted to production control and externaltesting by accredited test institutes in accordancewith the EN standards.Fibertex was among the first in the nonwovenindustry to obtain the ISO 14001 environmentalmanagement system certificate. Fibertex'senvironmental policy is to develop, produce andsupply environmentally responsible products. Toreduce consumption of energy and raw materialsand generation of waste are main focus areas.1071-CPD-1846Designing with Fibertex geotextilesFibertex offers design specifications according tofunction. The functions of geotextiles are dividedinto five categories: Separation, Filtration, Drainage,Protection and Reinforcement. Regardless oftype of construction, the geotextile performs atleast one of these functions. For detailed designspecifications, consult our Fibertex Design Guide.For design specifications for the function, Stressrelieving (Paving fabric), see ”Fibertex AM2 forStress relieving”. The design specifications andtechnical data are available on www.fibertex.comor by contacting your local Fibertex representative.3

C O N S T RFibertex GeotextilesFunctionsSeparationThe durability and mechanicalproperties of Fibertex Geotextilesmake them ideal for separatinglayers in construction works.A strong and flexible FibertexGeotextile is placed between the different layersin the construction preventing migration andmingling of materials, yet allowing free movementof water. This increases the bearing capacity andprovides long-term stability of the foundationlayers.FiltrationThe pore structure of FibertexGeotextiles is designed to retainparticles while allowing freemovement of water, making it possibleto separate two layers during intensehydraulic activity. Migration of layers, whichwould reduce the load-bearing capacity of thesystem, is thereby avoided and at the same timewater flow is maintained with minimum pressureloss.DrainageThe hydraulic properties of FibertexGeotextiles is designed to drainexcess water off the construction- not by passing through the fabric- but by flowing in the plane of thefabric away from the construction. The use of adrainage geotextile ensures an ongoing drainageof fluids with minimum pressure loss.4

U C T I O NProtectionThe excellent static punctureresistance of Fibertex Geotextilesmakes them ideal for protectingwaterproof membranes and othersealing materials from puncturewhen fill material and/or loads are applied. Whenplaced between sealing material and other layers,the geotextile withstands and distributes any localpressure from the layer above, ensuring that theprotected material is not stressed to failure.ReinforcementTogether with woven andgeogrid, the mechanical andhydraulic properties of FibertexGeotextiles make the product idealfor reinforcing slopes and otherearthworks. Reinforcement which incorporatesthe correct type of Fibertex Geotextile willprevent the collapse of vertical earthworks andsteep slopes.Stress relievingFibertex offers a flexible precompressednonwoven designed especiallyfor stress relieving. The stress relievingpaving fabric is ideal in both newroad constructions and in roadmaintenance, as it absorbs differential movementsin the road layers, preventing reflective cracking.The bitumen-saturated paving fabric also formsa waterproof interlayer, protecting the subsoilfrom water intrusion and thereby loss of bearingcapacity.5

C O N S T RRoad works Construction Ground systemsPermanent RoadsBy separating thedifferent layers ofmaterials, FibertexGeotextiles stabiliseroad constructionsthat are designed toresist dynamic andstatic stresses.FoundationsWhen placed underfoundations, FibertexGeotextiles replacethe blinding layer.It is simple, effectiveand economical.Pipes and TrenchesPlacing a FibertexGeotextile on thebottom of the trenchincreases the bearingcapacity considerably.Temporary roadsParking AreasRoad WideningFibertex Geotextilesplaced below the topgravel layer increasethe bearing capacityof the road to withstandcontinuousheavy traffic loads. Nocars, tractors or othervehicles will becomestuck in the gravel.Areas subject toconsiderable staticloads require a stablebearing course.Fibertex Geotextilesprovide this by separatingthe differentlayers of materials,which is essential tomaintain the bearingcapacity.Fibertex Geotextilesensure separationand stabilitybetween subsoil andadded road buildingmaterials.Concrete FloorsBelow concretefloors, the permeableFibertex Geotextileprotects thedrainage layer fromcontamination fromthe concrete and thesubsoil.Impact Sound SuppressionRoofsIn apartmentbuildings, FibertexGeotextiles are usedfor sound suppressionpurposes.Fibertex Geotextilesare used as slidinglayer, mechanicalprotection of roofmembranes and asfilter protection of anydrainage layers.Storage AreasUsing FibertexGeotextiles preventsmingling or loss offines in the bearingcourses as well asclogging of thedrainage layer.Storage Areas with AM2Sport GroundsBitumen-saturatedFibertex AM2absorbs the stressesfrom cracks or jointsin the old surface,preventing reflectionthrough Densiphaltcomposite wearingcourses.Grass fields, cindersand gravel courts/grounds are stabilisedwith FibertexGeotextiles due tothe effective drainage,ensuring an evensurface.Asphalt MaintenanceAirportsBitumen-saturatedFibertex AM2prevents surfacewater from penetratingthe bearingcourse, preventingwashing out offines and reducingthe occurrence offissures and cracksconsiderably.In constructions withheavy demands onthe surface, FibertexGeotextiles stabilisethe foundationsenabling them towithstand dynamicloads.Roof GardensFibertex Geotextilesare used asseparation layer,mechanical protectionof roof membranesand as filter protectionof any drainage layer.SlopesWith FibertexGeotextiles underthe top layer, theslope will withstandsubsoil water,rainwater andwater from meltedsnow which would,otherwise, wash outthe fines.6RailwaysThe rapidly increasingspeed and weightof trains place heavydemands on the bearingcourse. FibertexGeotextiles stabilisethe foundation,enabling it to withstanddynamic loads.

U C T I O NDrainage/Filtration Hydraulic works Waste disposalDrainage PipesDrainage TrenchesWith permeableFibertex Geotextileswrapped around thepipes, an effectiveand long lastingdrainage system isensured, without anyrisk of clogging.Fibertex Geotextilesprotect the drainsystem by preventingmingling of fines.Coastal ProtectionDamsFibertex Geotextilesprotect the coast lineas their flexibility andpermeability ensurewithstanding of theimpact of waves andcurrents, preventingerosion and washingout of fines.Artificial dams andembankments needto be fortified withstrong materials toresist the forces ofnature. FibertexGeotextiles stabiliseand prevent washingout of fines.Waste Disposal (Top Layers)In supervised wastedisposal sites, FibertexGeotextiles on bothsides of the membranesprotect them fromperforation. Furthermore,Fibertex Geotextiles areused as filter protectionof the drainage layers.Waste Disposal (Bottom Layers)As descriped above,Fibertex Geotextileson both sides ofmembranes protectthem from perforation.Fibertex Geotextilesalso help to detectleaks.Surface DrainsHarbour ConstructionsWater Purification SystemsBuilding DrainsSurface drains arelikely to becomesilted up from thesurrounding soil.Fibertex Geotextileskeep the finesseparated from thedrainage layer ensuringthe effectiveness ofthe drain system.River Banks and CanalsFibertex Geotextilesplaced behind theretaining wall keep thedrainage layer cleanwhich relieves thehydraulic pressure onthe wall. When placedin front of the retainingwall, Fibertex Geotextilesprevent washing outof the sea bed.Fibertex Geotextileson both sides of thewaterproof membraneprotect the systemagainst perforation.In the constructionof foundations andbasement walls,Fibertex Geotextilesensure a cleanand effectivecircumferential drain,which e.g. preventsdamage caused bydampness.Artificial LakesFibertex Geotextilesprotect river banksand canals in aneffective andenvironmentallyfriendly way.The waterproofmembrane isprotected againstperforation withFibertex Geotextiles.Water ReservoirsFibertex Geotextilesprotect the waterproofmembraneagainst perforation.7

C O N S T R U C T I O NFranceDenmarkCzech RepublicSouth AfricaFacts about FibertexFibertex Nonwovens A/S is a market leading manufacturer of needlepunchnonwovens for industrial and technical applications.With corporate office in Aalborg, Denmark, and manufacturing sites inDenmark, the Czech Republic, France and South Africa Fibertex is globallyrepresented. Since its foundation in 1968, Fibertex has continuouslyexpanded and today manufactures nonwovens for customers all over theworld for many different applications.Close to our customersOur goal is to be local on the global market. Sales staff, subsidiaries anddistribution network play a decisive role in helping us to achieve this.Worldwide technical service is offered close to you.Find inspiration on www.fibertex.comVisit our website for more information. Under the business area”Geotextiles” you will find detailed information about ourproducts, data sheets and brochures for download aswell as contact information.The information given in this publication is ofan illustrative nature. The manner of use is thesole responsibility of the user and the user mustassume all risk and liability in connection herewith.1071-CPD-1846B10 MARKETING A/S 031.371.01.GB/10.06Fibertex Nonwovens A/SSvendborgvej 16DK-9220 AalborgDenmarkTel. +45 96 35 35 35Fax +45 98 15 85 55fibertex@fibertex.comwww.fibertex.com